Definitions

Question 1

Block

Answer 1

A length of track of defined limits, the use of which is governed by block signals, block-limit signals, automatic speed control or any combination thereof.

Question 2

Absolute Block

Answer 2

A block established between block stations, block-limit stations, interlockings or any combination thereof which must not be occupied by more than one train except as provided by the rules.

Question 3

Automatic Speed Control System

Answer 3

A system so arranged that it’s operation will automatically result in the following: A full service application of the train brakes if, while operating under a speed restriction, the speed of the train exceeds the predetermined rate. The application will continue until the train is either brought to a stop or, under the control of the engineer, its speed is reduced to the predetermined rate.

Question 4

Automatic Block Signal System

Answer 4

A block signal system wherein the use of each block is governed by an automatic Block Signal, the cab signal indicator or both.

Question 5

Block Signal System

Answer 5

A series of consecutive blocks.

Question 6

Manual Block Signal System

Answer 6

A block signal system wherein the use of each block is governed by block signals controlled manually, by block-limit signals or both, upon information received by telephone, radio or other means of communication.

Question 7

Speed Controlled Train

Answer 7

A train equipment with the following speed control apparatus, a cab signal indicator, sealed application valve or switch, audible warning device and acknowledging switch, in operative condition for the direction in which it is to move.

Question 8

Engine(ENG)

Answer 8

A unit propelled by any form of energy or a combination of units operated from a single control, used in road or yard service.

Question 9

Multiple Unit Equipment

Answer 9

Equipment capable of being propelled by electrical energy through the use of third rail contact shoes.

Question 10

Track Car

Answer 10

A roadway maintenance machine, not classified as an engine, which is operated on track for inspection or maintenance. It may not shunt track circuits or operate signals and will be governed by rules and special instructions for trains other than passenger trains.

Question 11

Interlocking

Answer 11

An arrangement of signals and signal appliances so interconnected that their movements must succeed each other in proper sequence and for which interlocking rules are in effect.

Question 12

Interlocking Limits

Answer 12

The tracks between the extreme opposing home signals of an interlocking.

Question 13

Pilot

Answer 13

An employee assigned to a train or track car when the engineer, conductor or track car driver is not qualified on the physical characteristics or rules of the railroad or portion of the railroad over which the movement is to be made.

Question 14

Aspect

Answer 14

The appearance of a fixed signal which conveys an indication as viewed from the direction of an approaching train; the appearance of a cab signal indicator as viewed in the engine control compartment.

Question 15

Block-Limit Signal

Answer 15

A fixed signal indicating the limit of the block, the use of which is governed by manual block signal system rules.

Question 16

Block signal

Answer 16

A fixed signal or a hand signal in the absence of a fixed signal, at the entrance to a block that governs trains using that block.

Question 17

Cab Signal Indicator

Answer 17

A signal indicator located in the engine control compartment displaying the maximum speed for the movement of the train. It will be used in conjunction with interlocking signals and either in conjunction with or in lieu of block signals.

Question 18

Distant Signal

Answer 18

A fixed signal used to govern the approach to a home signal.

Question 19

Fixed Signal

Answer 19

A signal of a fixed location indicating a condition which affects the movement of a train.

Question 20

Home Signal

Answer 20

A fixed signal that displays Stop Signal as its most restrictive aspect and governs the entrance to a route or block.

Question 21

Indication

Answer 21

The information conveyed by the aspect of a signal.

Question 22

Interlocking Signals

Answer 22

The fixed signals of an interlocking.

Question 23

Marker

Answer 23

A highly visible marking device in the red-orange-amber color range, affixed to the rear of the train to indicate that the train is complete.

Question 24

Foul Time

Answer 24

A method of establishing working limits on a main track, secondary track or siding in which a roadway worker is notified by the Train Dispatcher through the Block Operator that no trains will operate within working limits established on that track until the roadway worker reports clear of the track.

Question 25

Inaccessible Track

Answer 25

A method of establishing working limits on tracks not controlled by the Train Dispatcher or Block Operator by physically preventing the entry and movement of trains.

Question 26

Block Limit Station

Answer 26

A place at which a block limit-signal is displayed.

Question 27

Job Briefing

Answer 27

When reporting for duty, employees whose duties require coordination with other employees must hold a job briefing to discuss operational and safety conditions. If these conditions change, employees must hold an additional job briefing to discuss the new conditions.

Question 28

Watchmen/Lookout

Answer 28

A properly equipped employee that has been annually trained on roadway worker protection whose sole duty is to provide at least 15 seconds advanced visual and auditory warning of approaching trains or on-track equipment to roadway workers.

Question 29

Working Limits

Answer 29

A segment of track with definite boundaries upon which trains may move only as authorized by the roadway worker in charge of that segment of track.

Question 30

Advanced Civil Speed Enforcement System(ACSES)

Answer 30

A transponder and data-radio based train-control system which will automatically apply the brakes of an equipped train if, while approaching a Speed Restriction or Positive Train Stop Location, the speed of the train exceeds the predetermined rate.

Question 31

ACSES Controlled Train

Answer 31

A passenger or freight class train equipped with the following ACSES controlled apparatus; A data radio, aspect display unit, sealed ACSES valve or switch, audible warning device and acknowledging switch in operative condition

Question 32

Limited Speed

Answer 32

A speed not exceeding 45 MPH

Question 33

Maximum Authorized Speed(MAS)

Answer 33

The highest speed that is permitted over a specific portion of the railroad. It may be authorized by the special instructions of the current timetable, Rules of the operating department or any other publication authorized by the General Superintendent Transportation.